Alert archive / Tennessee / Mesoscale Discussions in 2006
Mesoscale Discussion 284
The Storm Prediction Center issued this mesoscale discussion at Mar 13, 2006, 12:36 PM CST for 12 counties in Alabama; 31 counties in Mississippi; 39 counties in Tennessee. It was in force for 114 min.
The area
The outline as issued.
The facts
- Issued
- Mar 13, 2006, 12:36 PM CST (18:36 UTC)
- Expired
- Mar 13, 2006, 2:30 PM CST
- In force
- 114 min
- Issued by
- the Storm Prediction Center
All 82 counties
Colbert County, AL, Fayette County, AL, Franklin County, AL, Lamar County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Madison County, AL, Marion County, AL, Morgan County, AL, Pickens County, AL, Winston County, AL, Alcorn County, MS, Attala County, MS, Benton County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Clay County, MS, Grenada County, MS, Holmes County, MS, Itawamba County, MS, Kemper County, MS, Lafayette County, MS, Leake County, MS, Lee County, MS, Lowndes County, MS, Madison County, MS, Monroe County, MS, Montgomery County, MS, Neshoba County, MS, Noxubee County, MS, Oktibbeha County, MS, Pontotoc County, MS, Prentiss County, MS, Tippah County, MS, Tishomingo County, MS, Union County, MS, Webster County, MS, Winston County, MS, Yalobusha County, MS, Yazoo County, MS, Bedford County, TN, Benton County, TN, Cannon County, TN, Cheatham County, TN, Chester County, TN, Coffee County, TN, Davidson County, TN, Decatur County, TN, DeKalb County, TN, Dickson County, TN, Franklin County, TN, Giles County, TN, Grundy County, TN, Hardeman County, TN, Hardin County, TN, Henderson County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Jackson County, TN, Lawrence County, TN, Lewis County, TN, Lincoln County, TN, Marshall County, TN, Maury County, TN, McNairy County, TN, Moore County, TN, Perry County, TN, Putnam County, TN, Rutherford County, TN, Smith County, TN, Sumner County, TN, Trousdale County, TN, Van Buren County, TN, Warren County, TN, Wayne County, TN, White County, TN, Williamson County, TN, Wilson County, TN
The radar
The Columbus AFB radar (KGWX), 107 km from the middle of the area, began a volume at 18:39 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Little Rock, AR (KLZK), launched 12:00Z, 6.6 hours before the alert went out and 157 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 759 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 657 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 176 m²/s²
- 0-3 km storm-relative helicity
- 200 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 3.2
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 13, 1:48 PM CST | Tornado Watch | SPC | Colbert, Cullman, Fayette, Franklin, Greene, Hale and 12 more | 6 hr |
| Mar 13, 3:32 PM CST | Mesoscale Discussion | SPC | Choctaw, Clarke, Marengo, Monroe, Washington, Wilcox | 88 min |
| Mar 13, 3:59 PM CST | Mesoscale Discussion | SPC | Blount, Colbert, Cullman, Fayette, Franklin, Jackson and 13 more | 91 min |
| Mar 13, 5:41 PM CST | Mesoscale Discussion | SPC | Bibb, Blount, Calhoun, Cherokee, Clay, Cleburne and 25 more | 64 min |
| Mar 13, 5:56 PM CST | Tornado Watch | SPC | Bibb, Blount, Calhoun, Cherokee, Chilton, Clay and 11 more | 4 hr |
| Mar 13, 9:02 AM CST | Mesoscale Discussion | SPC | Bolivar, Coahoma, Tunica, Washington | 58 min |
| Mar 13, 6:08 AM CST | Mesoscale Discussion | SPC | Benton, Carroll, Chester, Crockett, Dyer, Fayette and 15 more | 97 min |
| Mar 13, 6:56 AM CST | Severe Thunderstorm Watch | SPC | Benton, Carroll, Crockett, Gibson, Henry, Houston and 4 more | 4 hr |
| Mar 13, 4:48 PM CST | Tornado Watch | SPC | Anderson, Bledsoe, Blount, Bradley, Campbell, Claiborne and 16 more | 5 hr |
Nearby
Mesoscale Discussions in Tennessee, 2006Mesoscale Discussions in Mississippi, 2006Mesoscale Discussions in Alabama, 2006Every mesoscale discussion in 2006
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.